Home » Which of the following is used as a ‘tracking dye’ in SDS-PAGE of protein? Electrophoresis MCQs Which of the following is used as a ‘tracking dye’ in SDS-PAGE of protein? September 23, 2022 1 View Q. Which of the following is used as a ‘tracking dye’ in SDS-PAGE of protein? Bromophenol blueXylene cyanolOrange GAll of these Answer: All of these